Dental instrument



FIG. 1 is a perspective view of a dental instrument showing my new design;

FIG. 2 is a front elevational view, with the rear elevational view being a mirror image, thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is a left elevational thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

CLAIM The ornamental design for a dental instrument, as shown and described. 